Notes.
The two well-developed awns on the palea is rare, but not unique in the genus.
The plants are tussock-forming mostly glabrous perennials, with setaceous
finely pointed often flexuose blades. The spreading panicle of drooping,
divided primary branches is relatively sparse. The glumes are glabrous,
many-nerved, and usually unequal due to their oblique attachment. The florets
(excluding awns) are shorter than the glumes, with appressed lemma and palea,
and an acute relatively long hairy callus. The lemmas are cartilaginous with
narrow hyaline margins, appressedly pubescent on the surface and ciliate on the
submargins, without grooves, and with a well-developed awn slightly longer than
the two awns on the palea, which has a pubescent body and glabrous keels and
flaps.

Native.
In Australia, Kimberley region of W.A., and N of the Tropic of Capricorn in Qld
and N.T.; also in Sri Lanka, India and throughout Southeast Asia. A common
plant of sandy seasonally flooded habitats (floodplains, seepage slopes, along
creeks, and the margins of fresh-water marshes, swamps, springs in gorge
floors, lakes and billabongs); also recorded from coastal sand dunes, rocky
hillslopes, and plateaux, often in association with sandstone and laterite.
Flowers and fruits Dec.-Aug. (summer to winter).